The healthcare provider has ordered that a patient be placed on a hemostatic drug to control postoperative bleeding. Which of the following medications will most likely be given in this situation?
Trombin (Evithrom)
Aminocaproic acid (Amicar)
Aspirin
Tranexamic acid (Cyklokapron)
The Correct Answer is D
A. Trombin (Evithrom): Incorrect: Thrombin (also known as factor IIa) is not typically used as a hemostatic drug. It is involved in the final step of the coagulation cascade, converting fibrinogen to fibrin to form a stable clot. However, it is not administered directly as a medication.
B. Aminocaproic acid (Amicar): Aminocaproic acid is an antifibrinolytic agent commonly used to control bleeding. It works by inhibiting the breakdown of fibrin clots, thus promoting hemostasis. It is particularly useful in situations where excessive bleeding occurs due to impaired clot dissolution. However, tranexamic acid is generally considered more potent and has a longer-lasting effect, making it the preferred choice in many situations.
C. Aspirin: Incorrect: Aspirin is an antiplatelet medication that inhibits platelet aggregation. While it can reduce the risk of clot formation, it is not primarily used for controlling postoperative bleeding.
D. Tranexamic acid (Cyklokapron): Correct: Tranexamic acid is another antifibrinolytic agent that helps prevent excessive bleeding. It works by blocking the breakdown of fibrin clots. Tranexamic acid is commonly used in surgical settings to manage bleeding during and after procedures.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "The anticoagulant effect of a single dose of aspirin can last for as long as a month." This statement is incorrect. While aspirin has antiplatelet effects that inhibit blood clot formation, its duration of action is not as long as a month. Aspirin irreversibly inhibits the enzyme cyclooxygenase (COX), thereby inhibiting platelet aggregation. However, the effects on platelet function are not permanent, and platelets turnover within a few days, thus the anticoagulant effect of a single dose of aspirin typically lasts for a shorter duration.
B. "The anticoagulant effect of a single dose of aspirin can last for as long as a day." Aspirin's primary effect is on platelets, not directly on overall blood clotting. It inhibits the COX enzyme, reducing the production of thromboxane A2, a chemical that promotes platelet aggregation. The initial inhibition of platelet function is strongest within the first 24 hours after taking aspirin. However, the affected platelets remain dysfunctional for their entire lifespan (around 7-10 days).
C. "The anticoagulant effect of a single dose of aspirin can last for as long as a week." This statement is correct. Aspirin's effect on platelets is due to its irreversible inhibition of the COX enzyme. Platelets have a lifespan of about 7-10 days. Once a platelet is affected by aspirin, it cannot regain its function. As your body continuously produces new platelets, the overall antiplatelet effect gradually diminishes over time.
D. "The anticoagulant effect of a single dose of aspirin can last for as long as 12 hours."
Rationale: This statement is partially correct. The antiplatelet effect of aspirin does not typically last as short as 12 hours. While the peak inhibition of platelet function occurs within hours after administration, the duration of action is longer due to the irreversible inhibition of COX-1. However, stating that it lasts exactly 12 hours may not be entirely accurate for all individuals, as the duration of action can vary depending on factors such as individual metabolism and dose.
Correct Answer is C
Explanation
A. Hypothermia: Clopidogrel is not typically associated with temperature regulation and wouldn't cause hypothermia.
B. Hypotension: While some medications can cause low blood pressure (hypotension), clopidogrel is not a common culprit.
C. Black stools: This can be a sign of upper gastrointestinal bleeding, which is a potential side effect of clopidogrel. Clopidogrel inhibits platelet aggregation, which can increase bleeding risk.
D. Constipation: Constipation is not a common side effect of clopidogrel.
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